This is interesting, thanks:
For 2.4 Ghz site checks and coverage checks I use WiFi Analyzer on Andriod, but it only knows about 2.4 Ghz WiFi with the beacon on and can't tell me about interference.
There is a big 'ol bulky spectrum analyzer in the office, but I can't keep it with me in the field and easily keep track of what's going on in the ever changing ISM bands.
And I'm still really curious about the new dual band cards coming out that claim to do 802.11a.
After a weekend of experiment with the Waverider PTP stuff and my card with the Ralink chip(set) in it I don't see it being useful for detecting if a given radio is emitting RF, much less actually connecting to it - I suppose the card and software need to see some sort of beacon and these radios don't seem to be putting one out.
Next I'll take some of the Tranzeo radios home (in a tiny valley with no neighbors or a way for 5 Ghz to escape) and see if the card will recognize them. If the card sees them I may be able to use it for quick signal strength tests. And maybe this card could be CPE for the Tranzeo radios.
I'm still hunting for the documents that will help me understand how the 802.11a implementation varies between these radios.
Thanks for the help!